CN201173815Y - Data acquisition unit for measuring ultrasound focusing knife probe acoustic field - Google Patents
Data acquisition unit for measuring ultrasound focusing knife probe acoustic field Download PDFInfo
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- CN201173815Y CN201173815Y CNU2008200797273U CN200820079727U CN201173815Y CN 201173815 Y CN201173815 Y CN 201173815Y CN U2008200797273 U CNU2008200797273 U CN U2008200797273U CN 200820079727 U CN200820079727 U CN 200820079727U CN 201173815 Y CN201173815 Y CN 201173815Y
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Abstract
The utility model discloses a data acquisition device used for measuring sound field of an ultrasonic focusing knife probe, which belongs to the detection field of a medical ultrasonic apparatus. The control circuit (2), on the one hand, controls a hydrophone to move at uniform speed on the area needing sampling through controlling the motion of a signal collector (1), and on the other hand, transmits the piezoelectric signals of the ultrasonic sound field acquired from the hydrophone to the control circuit through an interface (J101), and transmits the piezoelectric signals to a single-chip control chip (U101) after passing through a multi-channel amplifier and a detector, thereby achieving uniformly sampling the area that needs sampling during uniform motion through controlling the time of A/D conversion; the acquired data is sent to the PC (3) machine through an interface (J103) after the sampling is finished, thereby the uniform sampling of the ultrasonic sound field is achieved and the data acquired by sampling is sent to the PC machine; the signal acquired by sampling is displayed in an image form to describe the focus field of the ultrasonic sound field visually.
Description
Technical field
The utility model belongs to medical ultrasound therapeutic equipments detection range, specially refers to the ultrasonic sound field measuring technique of focus ultrasonic knife probe.
Background technology
The pop one's head in correct scanning in burnt territory is to guarantee the validity of focus ultrasonic knife treatment and a vital factor of security to focus ultrasonic knife.
Literature search to prior art is found, Chinese patent publication number CN1453562A, open day is on November 5th, 2003, patent name is: medical supersonic equipment sound output measuring system, this patent readme is: " a kind of medical supersonic equipment sound output measuring system; mainly comprise: three-dimensional sound field scanning step motor drive and control system; storage oscilloscope-computer system; measure that water is listened and with reference to nautical receiving set; auxiliary device; mechanical framework, tested probe and measurement hydrophone two-way coordinates precise orientation and positioning system with 11 degree of freedom, measurement hydrophone be fixed on the tested probe and measurement hydrophone two-way coordinates precise orientation and positioning system with 11 degree of freedom with reference to nautical receiving set, measurement hydrophone be connected with storage oscilloscope-computer system signal input part with reference to hydrophone cables, three-dimensional sound field scanning step motor drive is connected with storage oscilloscope-computer system signal output part through cable by the RS232 interface with control system, three-dimensional sound field scanning step motor drive is connected with positioning system with measurement hydrophone two-way coordinates precise orientation with the tested probe with 11 degree of freedom with signal cable through driving cable with control system, and auxiliary device links to each other with storage oscilloscope-computer system.”
Its weak point is: utilize 3-D scanning mechanism that probe area is carried out X, Y, the point by point scanning of three directions of Z, the piezoelectric signal that scanning obtains is imported oscillograph through cable, but on the one hand because oscillographic processing speed is slower, if it is full that the input block is write, then can not in the input block, write again, otherwise can cause time-out error, if the opposing party control person orders oscillograph to send bulk data to control person and handles, oscillograph needs can be with DSR than the long time, because oscillograph can only be handled an order in a time, in transferring signals to control person's process, then can not accept the signal that transmits from nautical receiving set.Very big these characteristics of the semaphore that collects by nautical receiving set when comprehensive oscillographic above characteristics and measurement sound field, adopt this kind method when measuring sound field, can not in the uniform motion process, realize uniform sampling, and because Measuring Time is long, the surveying work amount is big, so can not guarantee the stability of the signal gathered in the measuring process, and the real-time of signal is relatively poor.
The utility model content
Technical problem to be solved in the utility model is: how to be implemented in the Data transmission that realizes uniform sampling and energy real-time in the uniform motion process in the ultrasonic sound field of focus ultrasonic knife probe is measured.
The utility model utilizes singlechip control chip to come the control signal collector on the one hand, makes in scanning process, and the telecontrol equipment in the signal picker drives nautical receiving set and makes uniform motion.The piezoelectric signal that utilizes singlechip control chip that nautical receiving set is collected is on the other hand realized the uniformly-spaced uniform sampling of equal time, and the signal after real-time will the conversion is transferred to and stores in the PC and handle, so solved and in the uniform motion process, realized this problem of uniform sampling, guaranteed the stability of the signal that collects.
The utility model solves the problems of the technologies described above the technical scheme that is adopted:
The data collector that is used for focus ultrasonic knife probe acoustic field comprises: signal picker, control circuit, three parts of PC, control circuit comprises: singlechip control chip (U101), interface (J101), interface (J102), interface (J103), amplifier (U102B), amplifier (U102A), wave detector (D101), wave detector (D102), and the annexation between each device is:
The port (PD4) of singlechip control chip (U101), (PD5), (PD6), (PD7) link to each other with port (1A), (2A), (4A), (3A) of chip (U103) respectively, the port (1Y) of chip (U103), (1Z), (2Y), (2Z), (3Y), (3Z), (4Y), (4Z) link to each other with interface (J102), and interface (J102) will be connected with the stepper motor of signal picker with the driving cable by signal cable;
By nautical receiving set the piezoelectricity simulating signal that ultrasonic sound field collects is imported from interface (J101) through hydrophone cables, one end of resistance (R106) is connected the back and links to each other with interface (J101) with an end of resistance (R108), the other end ground connection of resistance (R108), the other end of resistance (R106) links to each other with the positive input of amplifier (U102B), one end of resistance (R107) links to each other with the positive input of amplifier (U102B), other end ground connection, the positive pole of the output terminal tie geophone (D101) of amplifier (U102B), the negative pole of wave detector (D101) connects the port (PA0) of singlechip control chip (U101), the negative pole of one termination wave detector (D102) of electric capacity (C103), other end ground connection, the negative pole of one termination wave detector (D101) of electric capacity (C104), other end ground connection, the reverse input end of amplifier (U102B) with link to each other with the output terminal of amplifier (U102B) again after an end of resistance (R113) is connected, the other end of resistance (R113) is connected with the positive input of amplifier (U102A), the positive pole of the output terminal tie geophone (D102) of amplifier (U102A), the negative pole of wave detector (D102) connects the port (PA1) of singlechip control chip (U101), resistance (R102) termination (VCC), the positive power end of another termination amplifier (U102A), the positive power end of electric capacity (C105) termination amplifier (U102A), other end ground connection, the output terminal of resistance (R103) termination amplifier (U102A), the reverse input end of another termination amplifier (U102A), resistance (R104) end ground connection, the reverse input end of another termination amplifier (U102A), one end of resistance (R105) and the negative power end that connects amplifier (U102A) after an end of electric capacity (C106) links to each other, another termination (VEE) of resistance (R105), the other end ground connection of electric capacity (C106);
The port (PD2) of singlechip control chip (U101), (PD1), (PD3), (PD0) respectively with the port (T1 of chip (U104)
In), (T2
In), (R1
Out), (R2
Out) link to each other the port (T1 of chip (U104)
Out), (T2
Out), (R1
In), (R2
In) link to each other with interface (J103), interface (J103) will be connected with PC by cable.
The beneficial effects of the utility model are: can be transferred in the PC by the real-time signal with collecting after sampling, handle the real-time of transmission signals and the problem of signal stabilization with regard to having solved classic method by oscillograph like this.And, adopt this structure not need oscillograph, and less demanding to PC, cost so just reduced greatly.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 is the signal flow graph that is used for the data collector of focus ultrasonic knife probe acoustic field.
Fig. 2 is the structural representation that is used for the data collector of focus ultrasonic knife probe acoustic field.
Fig. 3 is the circuit theory diagrams of control circuit that are used for the data collector of focus ultrasonic knife probe acoustic field.
Embodiment
A kind of data collector that is used for focus ultrasonic knife probe acoustic field of the utility model design is made of signal picker, control circuit, three parts of PC.
As shown in Figure 1, PC sends the beginning control command to control circuit.Control circuit sends the drive signal of stepper motor to signal picker, the motion of control signal collector.Signal picker will be sent to control circuit and handle by the simulating signal that nautical receiving set collects.Control circuit is sent to PC after the simulating signal that receives is handled.
In Fig. 2, stepper motor A links to each other with singlechip control chip U101 by the interface J102 on the control circuit 2 with stepper motor B, singlechip control chip U101 is input to stepper motor A and B with pulse signal by interface J102, the motion that singlechip control chip U101 comes the control step motor by the frequency and the quantity of control wave.Stepper motor A and stepper motor B control the motion of X-axis and Y-axis respectively, and nautical receiving set is fixed on the X-axis, thereby reach the purpose that the control nautical receiving set moves with uniform velocity on the zone of needs sampling.The piezoelectric signal of the ultrasonic sound field that obtains from nautical receiving set is delivered to amplifier U103B by interface J101, after amplifying, be divided into two paths of signals, one the tunnel delivers to singlechip control chip U101 through wave detector D106, and singlechip control chip U101 is delivered to through wave detector D107 again in another road behind amplifier U103A.Singlechip control chip U101 was implemented in the uniform motion process uniform sampling is carried out in the zone of need sampling by the time of control A/D conversion.The data that immediately sampling obtained after sampling finishes are delivered in the PC by meeting J103, thereby have realized the uniform sampling to ultrasonic sound field, and the data that in real time sampling obtained deliver to that storage shows among the PC, depict the burnt territory of ultrasonic sound field visually.
Fig. 3 is the circuit theory diagrams of control circuit that are used for the data collector of focus ultrasonic knife probe acoustic field.
The port (PD4) of singlechip control chip (U101), (PD5), (PD6), (PD7) link to each other with port (1A), (2A), (4A), (3A) of chip (U103) respectively, the port (1Y) of chip (U103), (1Z), (2Y), (2Z), (3Y), (3Z), (4Y), (4Z) link to each other with interface (J102), and interface (J102) is connected with the stepper motor of signal picker with the driving cable by signal cable; Singlechip control chip U101 is by the frequency and the output quantity of accurate control wave, thereby the motion of accurate control step motor makes it drive nautical receiving set and make uniform motion on the zone of needs sampling.
By nautical receiving set the piezoelectricity simulating signal that ultrasonic sound field collects is imported from interface (J101) through hydrophone cables, one end of resistance (R106) is connected the back and links to each other with interface (J101) with an end of resistance (R108), the other end ground connection of resistance (R108), the other end of resistance (R106) links to each other with the positive input of amplifier (U102B), one end of resistance (R107) links to each other with the positive input of amplifier (U102B), other end ground connection, the positive pole of the output terminal tie geophone (D101) of amplifier (U102B), the negative pole of wave detector (D101) connects the port (PA0) of singlechip control chip (U101), the negative pole of one termination wave detector (D102) of electric capacity (C103), other end ground connection, the negative pole of one termination wave detector (D101) of electric capacity (C104), other end ground connection, the reverse input end of amplifier (U102B) with link to each other with the output terminal of amplifier (U102B) again after an end of resistance (R113) is connected, the other end of resistance (R113) is connected with the positive input of amplifier (U102A), the positive pole of the output terminal tie geophone (D102) of amplifier (U102A), the negative pole of wave detector (D102) connects the port (PA1) of singlechip control chip (U101), resistance (R102) termination (VCC), the positive power end of another termination amplifier (U102A), the positive power end of electric capacity (C105) termination amplifier (U102A), other end ground connection, the output terminal of resistance (R103) termination amplifier (U102A), the reverse input end of another termination amplifier (U102A), resistance (R104) end ground connection, the reverse input end of another termination amplifier (U102A), one end of resistance (R105) and the negative power end that connects amplifier (U102A) after an end of electric capacity (C106) links to each other, another termination (VEE) of resistance (R105), the other end ground connection of electric capacity (C106); Realize the uniform sampling of signal that nautical receiving set is collected by the time of singlechip control chip U101 control A/D conversion.
The port (PD2) of singlechip control chip (U101), (PD1), (PD3), (PD0) respectively with the port (T1 of chip (U104)
In), (T2
In), (R1
Out), (R2
Out) link to each other the port (T1 of chip (U104)
Out), (T2
Out), (R1
In), (R2
In) link to each other with interface (J103), interface (J103) will be connected with PC through cable.
Singlechip control chip U101 is exported through A/D conversion back the signal of PA0 mouth input by the PD2 mouth, through the T1 of U104
InMouthful enter, again by the T1 of U104
OutMouth outputs to interface J103, is connected to PC at last; Singlechip control chip U101 is exported through A/D conversion back the signal of PA1 mouth input by the PD1 mouth, through the T2 of U104
InMouthful enter, again by the T2 of U104
OutMouth outputs to interface J103, is connected to PC at last.The control signal of PC is through the R1 of interface J103
InMouth and R2
InThe mouth input is correspondingly by R1
OutAnd R2
OutExport PD3 and the PD4 mouth of U101 to.
Singlechip control chip U101 adopts the ATMEGA16 chip in this design, chip U102 adopts the LMH6643MA chip, chip U103 adopts the AM26LS31C chip, and chip U104 adopts the MAX232 chip, also can adopt other can realize the chip of identical function according to different demands.
Claims (1)
1. the data collector that is used for focus ultrasonic knife probe acoustic field, this harvester comprises signal picker, control circuit, three parts of PC, it is characterized in that, control circuit comprises: singlechip control chip (U101), interface (J101), interface (J102), interface (J103), amplifier (U102B), amplifier (U102A), wave detector (D101), wave detector (D102), and the annexation between each device is:
The port (PD4) of singlechip control chip (U101), (PD5), (PD6), (PD7) link to each other with port (1A), (2A), (4A), (3A) of chip (U103) respectively, the port (1Y) of chip (U103), (1Z), (2Y), (2Z), (3Y), (3Z), (4Y), (4Z) link to each other with interface (J102), and interface (J102) will be connected with the stepper motor of signal picker with the driving cable by signal cable;
By nautical receiving set the piezoelectricity simulating signal that ultrasonic sound field collects is imported from interface (J101) through hydrophone cables, one end of resistance (R106) is connected the back and links to each other with interface (J101) with an end of resistance (R108), the other end ground connection of resistance (R108), the other end of resistance (R106) links to each other with the positive input of amplifier (U102B), one end of resistance (R107) links to each other with the positive input of amplifier (U102B), other end ground connection, the positive pole of the output terminal tie geophone (D101) of amplifier (U102B), the negative pole of wave detector (D101) connects the port (PAO) of singlechip control chip (U101), the negative pole of one termination wave detector (D102) of electric capacity (C103), other end ground connection, the negative pole of one termination wave detector (D101) of electric capacity (C104), other end ground connection, the reverse input end of amplifier (U102B) with link to each other with the output terminal of amplifier (U102B) again after an end of resistance (R113) is connected, the other end of resistance (R113) is connected with the positive input of amplifier (U102A), the positive pole of the output terminal tie geophone (D102) of amplifier (U102A), the negative pole of wave detector (D102) connects the port (PA1) of singlechip control chip (U101), resistance (R102) termination (VCC), the positive power end of another termination amplifier (U102A), the positive power end of electric capacity (C105) termination amplifier (U102A), other end ground connection, the output terminal of resistance (R103) termination amplifier (U102A), the reverse input end of another termination amplifier (U102A), resistance (R104) end ground connection, the reverse input end of another termination amplifier (U102A), one end of resistance (R105) and the negative power end that connects amplifier (U102A) after an end of electric capacity (C106) links to each other, another termination (VEE) of resistance (R105), the other end ground connection of electric capacity (C106);
The port (PD2) of singlechip control chip (U101), (PD1), (PD3), (PDO) respectively with the port (T1 of chip (U104)
In), (T2
In), (R1
Out), (R2
Out) link to each other the port (T1 of chip (U104)
Out), (T2
Out), (R1
In), (R2
In) link to each other with interface (J103), interface (J103) will be connected with PC by cable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200797273U CN201173815Y (en) | 2008-04-02 | 2008-04-02 | Data acquisition unit for measuring ultrasound focusing knife probe acoustic field |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200797273U CN201173815Y (en) | 2008-04-02 | 2008-04-02 | Data acquisition unit for measuring ultrasound focusing knife probe acoustic field |
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| Publication Number | Publication Date |
|---|---|
| CN201173815Y true CN201173815Y (en) | 2008-12-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200797273U Expired - Fee Related CN201173815Y (en) | 2008-04-02 | 2008-04-02 | Data acquisition unit for measuring ultrasound focusing knife probe acoustic field |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102249367A (en) * | 2011-04-02 | 2011-11-23 | 河海大学常州校区 | Method for carrying out detection and control on ultrasonic intensity in water treatment |
| CN102662007A (en) * | 2012-05-23 | 2012-09-12 | 北京理工大学 | Phased array ultrasonic transducer sound field scanning method |
| CN102865919A (en) * | 2012-09-10 | 2013-01-09 | 河海大学常州校区 | Ultrasonic sound field three-dimensional imaging virtual laboratory |
| CN109030048A (en) * | 2018-07-06 | 2018-12-18 | 杭州电子科技大学 | A kind of luffing rod-type phonochemistry system radiated sound field evaluation method |
-
2008
- 2008-04-02 CN CNU2008200797273U patent/CN201173815Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102249367A (en) * | 2011-04-02 | 2011-11-23 | 河海大学常州校区 | Method for carrying out detection and control on ultrasonic intensity in water treatment |
| CN102249367B (en) * | 2011-04-02 | 2013-04-24 | 河海大学常州校区 | Method for carrying out detection and control on ultrasonic intensity in water treatment |
| CN102662007A (en) * | 2012-05-23 | 2012-09-12 | 北京理工大学 | Phased array ultrasonic transducer sound field scanning method |
| CN102865919A (en) * | 2012-09-10 | 2013-01-09 | 河海大学常州校区 | Ultrasonic sound field three-dimensional imaging virtual laboratory |
| CN102865919B (en) * | 2012-09-10 | 2014-05-28 | 河海大学常州校区 | Ultrasonic sound field three-dimensional imaging virtual laboratory |
| CN109030048A (en) * | 2018-07-06 | 2018-12-18 | 杭州电子科技大学 | A kind of luffing rod-type phonochemistry system radiated sound field evaluation method |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20081231 Termination date: 20110402 |